Site 3: Analysis Facility

Site 3: Analysis Facility is the twenty-fourth level of Doom 3. Where archaeological entities are brought to and where the research is done. This is the last level where the surface of Mars is visible.

Summary
Upon arriving at Site 3 the marine steps out of the elevator into a Hell-corrupted hallway and is almost immediately attacked by a swarm of demons including a Hell knight. He defeats these demons, and heads into the Site 3 Hub where he battles cacodemons and another Hell knight. He then heads to the Freight Cart Terminal which will take him to the Caverns, and defeats more demons including yet another Hell knight. However, the Freight Cart is still back at the entrance to the Caverns and the controls are in a restricted part of the base.

The marine goes to the Artifact Receiving area where he's ambushed by an arch-vile and its minions. After killing them he goes through the lab section, fighting more enemies, including a couple of revenants. Along the way he finds Richard Davis' PDA which speculates that mankind is descended from the ancient martians. Eventually he arrives at Artifact Research where he finds four ancient stone tablets that the UAC researchers were studying. A video explains how the UAC built their teleporter devices using information from the tablets. It also goes into detail about the story the tablets tell of the ancients' struggle against the demons, and how they used the Soul Cube to defeat the invaders.

More demons - including another Hell knight - spawn. After the marine kills them, the door to a nearby locked office opens up, revealing a survivor - Dr. Pierce Rogers. Rogers is pleased that the marine has recovered the Soul Cube, saying it is the only way to stop this invasion. He gives the marine his PDA and a video disk of his discoveries, then tells him to get to the Caverns quickly.

Using Rogers' PDA, the marine gains entry to the Maintenance Area of the facility, and from there fights his way to the Freight Control Tower. There he recalls the freight cart back to Site 3, then returns to the Freight Cart Terminal. He boards the cart and rides it to the entrance to the Caverns, where an elevator is waiting for him. He exits the cart and gets into the elevator which will take him to Caverns Area 1.

Areas

 * Elevator 1
 * Site 3 Entrance Hall
 * Site 3 Hub
 * Freight Terminal Access
 * Freight Cart Terminal
 * Artifact Receiving
 * Lab Section 1
 * Lab Section 2
 * Artifact Research
 * Elevator Access
 * Site 3 Area
 * Maintenance 2 Access
 * Maintenance 2
 * Maintenance 2 Closet
 * Freight Control Access
 * Freight Control Tower
 * Maintenance 2 Lower
 * Pit Elevator

Objectives

 * Site3 Security Lockdown
 * Gain security clearance for all Site3 areas


 * Freighter control room
 * Locate the freight loader control tower to unlock the entrance to the caverns


 * Caverns entrance
 * Use the freight loader to gain access to the caverns entrance

Characters

 * Pierce Rogers
 * UAC announcer
 * Malcolm Betruger (voice only)

PDAs

 * Richard Davis. Found in Lab Section2.
 * Pierce Rogers. Given by Pierce in Artifact Research.

Video disks

 * Ancient Civilization

Enemies
The enemy count on Nightmare is the same as on Veteran. There are no changes in enemy amount in the BFG Edition. * Some imps in this level are spawned by one of the arch-viles, thus their amount can vary. Here only number of distinct spawn points is shown.

Items
The item count on Nightmare is the same as on Veteran, except the med kits are absent. There are no changes in the amount of items in the BFG Edition. There five health stations on the level, two with 100 health and three with 75 health.

Starting inventory
If the player starts the level via a console command, they will start with these items: